RCW 26.26.320

Effect of acknowledgment or denial of paternity.

(1) Except as otherwise provided in RCW 26.26.330 and 26.26.335, a valid acknowledgment of paternity filed with the state registrar of vital statistics is equivalent to an adjudication of parentage of a child and confers upon the acknowledged father all of the rights and duties of a parent.

(2) Except as otherwise provided in RCW 26.26.330 and 26.26.335, a valid denial of paternity filed with the state registrar of vital statistics in conjunction with a valid acknowledgment of paternity is equivalent to an adjudication of the nonpaternity of the presumed father and discharges the presumed father from all of the rights and duties of a parent.